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High Yield Notes
2 pages

USMLE® Step 1 style questions USMLE

1 questions

A 26-year-old female comes to the clinic with a two-week history of painless ulcers on her arms and face. She denies fever, fatigue, or weight loss. She does not take any medications. She has recently returned from a military tour in the Middle East. Physical examination shows ulcers of varying sizes on her arms and face. Some lesions are small, pink plaques with a softened center, while others are larger and covered with a thick white-yellow fibrinous material. The remainder of the physical examination is unremarkable. Complete blood count concentrations are within normal limits. Microscopic examination of a skin ulcer biopsy shows amastigotes inside macrophages. Which of the following is the most likely diagnosis?

L. aethiopica
L. amazonensis
L. arabica
L. archibaldi (disputed species)
L. aristedesi
L. (Viannia) braziliensis
L. chagasi (syn. L. infantum)
L. (Viannia) colombiensis
L. deanei
L. donovani
L. enriettii
L. equatorensis
L. forattinii
L. garnhami
L. gerbili
L. (Viannia) guyanensis
L. herreri
L. hertigi
L. infantum
L. killicki
L. (Viannia) lainsoni
L. major
L. mexicana
L. (Viannia) naiffi
L. (Viannia) panamensis
L. (Viannia) peruviana
L. (Viannia) pifanoi
L. (Viannia) shawi
L. tarentolae
L. tropica
L. turanica
L. venezuelensis